However...

However, when it is known that the Muslim has taken from the hand of a non-Muslim or it is supplied from a non-Muslim country and he has not investigated the method of its slaughter whether it is slaughtered in a legal manner or not, then, its sale and purchase is invalid and unlawful (the ruling of hides is as such, according to precaution).

When it is taken from a Muslim, its appearance indicating upon his restriction and obligation to the law, or it is likely that he has investigated it, then, the transaction is proper. Issue 732: The sale and purchase of all types of intoxicants is unlawful and invalid. Issue 733: The sale and purchase of usurped (Ghasbi) property is unlawful and invalid. It is obligatory upon the seller to return the price to the purchaser.

However, it is not correct that the purchaser should return that usurped thing to other than its owner. When he does not know its owner it is obligatory that he act in accordance with the view of the Religious Authority and his opinion. Issue 734: When it was the intent of the purchaser from the beginning not to pay the price of the commodity which he has purchased, there is an objection (to this transaction).

Likewise it is when (the purchaser's) initial intention was to pay the amount in unlawful money. However, when this was not his intention initially and he only gave the price of the commodity from unlawful property afterward, the transaction is proper, however, it is obligatory that he gives (the price) from lawful property a second time.

Issue 735: The sale and purchase of instruments of entertainment (Lahw), amusement (La'b) and corruption is unlawful and invalid except that it be an instrument shared (between lawful and unlawful) or a instrument of exercise and similar things to that, then, its sale is permitted. Issue 736: When that which has a lawful benefit is sold to someone who will definitely use it for the unlawful (for example, selling grapes to the manufacturer of wines), the transaction is invalid.

Issue 737: The manufacture, sale and purchase of images are objectionable. The precaution is to abandon it. However, there is no objection in the sale and purchase of soap and similar things that are manufactured in the form of an image or embossed patterns. Issue 738: The sale and purchase of things that are obtained by means of gambling or theft or an invalid transaction is unlawful and invalid. It is not allowed to utilize it.